Chrysanthemum plant named &#39;DLFBLAN1&#39;

ABSTRACT

A new and distinct cultivar of  Chrysanthemum  plant named ‘DLFBLAN1’, characterized by its upright plant habit; vigorous growth habit; dark green-colored leaves; uniform and freely flowering habit; strong upright flowering stems with numerous inflorescences; anemone-type inflorescences with white-colored ray florets and yellow green-colored disc florets; excellent postproduction longevity; and relatively tolerant to low and high temperatures.

Botanical designation: Chrysanthemum X morifolium.

Cultivar denomination: ‘DLFBLAN1’.

CROSS-REFERENCED TO CLOSELY RELATED APPLICATIONS

Title: Varieties of Chrysanthemum Plants

Applicant: Arie Gerard Post

Provisional application Ser. No.: 62/764,554

Filed: Aug. 7, 2018

BACKGROUND OF THE INVENTION

The present invention relates to a new and distinct cultivar of Chrysanthemum plant, botanically known as Chrysanthemum X morifolium, commercially grown as a cut flower and hereinafter referred to by the name ‘DLFBLAN1’.

The new Chrysanthemum plant is a product of a planned breeding program conducted by the Inventor in Maasdijk, The Netherlands. The objective of the breeding program is to create new freely-flowering cut Chrysanthemum plants with attractive inflorescences, strong flowering stems and excellent postproduction longevity.

The new Chrysanthemum plant originated from a cross-pollination on Mar. 17, 2011 of a proprietary selection of Chrysanthemum x morifolium identified as code number DB 33767 as the female, or seed, parent with a proprietary selection of Chrysanthemum x morifolium identified as code number DB 34154 as the male, or pollen, parent. The new Chrysanthemum plant was discovered and selected as a single flowering plant from within the progeny of the stated cross-pollination in a controlled greenhouse environment in Maasdijk, The Netherlands on May 25, 2012.

Asexual reproduction of the new Chrysanthemum plant by vegetative terminal cuttings since May 25, 2012 has shown that the unique features of this new Chrysanthemum plant are stable and reproduced true to type in successive generations of asexual reproduction.

SUMMARY OF THE INVENTION

Plants of the new Chrysanthemum have not been observed under all possible combinations of environmental conditions and cultural practices. The phenotype may vary somewhat with variations in environmental conditions such as temperature, daylength and light intensity, without, however, any variance in genotype.

The following traits have been repeatedly observed and are determined to be the unique characteristics of ‘DLFBLAN1’. These characteristics in combination distinguish ‘DLFBLAN1’ as a new and distinct Chrysanthemum plant:

-   -   1. Upright plant habit; vigorous growth habit.     -   2. Dark green-colored leaves.     -   3. Uniform and freely flowering habit.     -   4. Strong upright flowering stems with numerous inflorescences.     -   5. Anemone-type inflorescences with white-colored ray florets         and yellow green-colored disc florets.     -   6. Excellent postproduction longevity.     -   7. Relatively tolerant to low and high temperatures.

Plants of the new Chrysanthemum differ from plants of the female parent selection in the following characteristics:

-   -   1. Disc florets of plants of the new Chrysanthemum are more         green in color than disc florets of plants of the female parent         selection.     -   2. Ray floret apices of plants of the new Chrysanthemum are more         pointed than and not as rounded as ray floret apices of the         female parent selection.

Plants of the new Chrysanthemum differ from plants of the male parent selection in the following characteristics:

-   -   1. Plants of the new Chrysanthemum have anemone-type         inflorescences whereas plants of the male parent selection have         single-type inflorescences.     -   2. Disc florets of plants of the new Chrysanthemum are yellow         green in color whereas disc florets of plants of the male parent         selection are yellow in color.

Plants of the new Chrysanthemum can be compared to plants of Chrysanthemum X morifolium ‘Deliradost’, not patented. In side-by-side comparisons plants of the new Chrysanthemum differ primarily from plants of ‘Deliradost’ in the following characteristics:

-   -   1. Disc florets of plants of the new Chrysanthemum are more         green in color than disc florets of plants of ‘Deliradost’.     -   2. Ray floret apices of plants of the new Chrysanthemum are more         pointed than and not as rounded as ray floret apices of         ‘Deliradost’.

Plants of the new Chrysanthemum can be compared to plants of Chrysanthemum X morifolium ‘DLFCAPO1’, not patented. In side-by-side comparisons plants of the new Chrysanthemum differ primarily from plants of ‘DLFCAPO1’ in disc floret color as disc florets of plants of the new Chrysanthemum are more green in color than disc florets of plants of ‘DLFCAPO1’.

BRIEF DESCRIPTION OF THE PHOTOGRAPHS

The accompanying colored photographs illustrate the overall appearance of the new Chrysanthemum plant showing the colors as true as it is reasonably possible to obtain in colored reproductions of this type. Colors in the photographs may differ slightly from the color values cited in the detailed botanical description which accurately describe the colors of the new Chrysanthemum plant. The photograph on the first sheet comprises a side perspective view of a typical flowering stem of ‘DLFBLAN1’ grown as a spray-type. The photograph on the second sheet comprises close-up views of the lower (top of the photographic sheet) and upper surfaces (bottom of the photographic sheet) of typical inflorescences and leaves of ‘DLFBLAN1’.

DETAILED BOTANICAL DESCRIPTION

The aforementioned photographs and following observations and measurements describe plants grown during the spring in ground beds in a glass-covered greenhouse in Maasdijk, The Netherlands and under cultural practices typical of commercial cut Chrysanthemum production. Plants were initially given long day/short night treatments followed by short day/long night treatments to induce flower initiation and development. During the production of the plants, day temperatures ranged from 18° C. to 22° C., night temperatures ranged from 20° C. to 25° C. and light levels averaged 8 klux. Plants were grown as single-stem plants and were ten weeks old when the photographs and the description were taken. In the following description, color references are made to The Royal Horticultural Society Colour Chart, 2015 Edition, except where general terms of ordinary dictionary significance are used.

-   Botanical classification: Chrysanthemum X morifolium ‘DLFBLAN1’. -   Parentage:     -   -   Female, or seed, parent.—Proprietary selection of             Chrysanthemum X morifolium identified as code designation DB             33767, not patented.         -   Male, or pollen, parent.—Proprietary selection of             Chrysanthemum X morifolium identified as code designation DB             34154, not patented. -   Propagation:     -   -   Type.—Terminal vegetative cuttings.         -   Time to initiate roots, summer.—About six days at             temperatures about 24° C.         -   Time to initiate roots, winter.—About eight days at             temperatures about 22° C.         -   Time to produce a rooted young plant, summer.—About twelve             days at temperatures about 24° C.         -   Time to produce a rooted young plant, winter.—About two             weeks at temperatures about 22° C.         -   Root description.—Fine, fibrous; typically creamy white in             color, actual color of the roots is dependent on substrate             composition, water quality, fertilizers, substrate             temperature and physiological age of roots.         -   Rooting habit.—Freely branching, medium density. -   Plant description:     -   -   Plant and growth habit.—Herbaceous anemone-type cut flower             that is typically grown as a single stem spray-type; upright             plant habit; vigorous growth habit and moderate to rapid             growth rate.         -   Plant height, soil level to top of foliar plane.—About 86.3             cm.         -   Plant height, soil level to top of inflorescence             plane.—About 88.9 cm.         -   Plant diameter (foliar).—About 20.5 cm.         -   Plant diameter (floral).—About 14.5 cm.         -   Flowering stem length.—About 83.3 cm.         -   Flowering stem diameter.—About 6.5 mm.         -   Flowering stem internode length.—About 2.3 cm.         -   Flowering stem strength.—Strong.         -   Flowering stem aspect.—Erect.         -   Flowering stem texture and luster.—Moderately pubescent;             slightly glossy.         -   Flowering stem color, developing.—Close to 144A, at the             internodes, close to between 144A and 146A.         -   Flowering stem color, developed.—Close to between 144A and             146A.         -   Leaf description.—Arrangement: Alternate; simple. Length:             About 10.5 cm. Width: About 5.8 cm. Shape: Ovate to             elliptic. Apex: Short apiculate. Base: Narrowly attenuate.             Margin: Palmately lobed, coarsely serrate to dentate;             sinuses convergent to parallel and medium in depth. Texture             and luster, upper surface: Moderately to densely pubescent,             not rugose; moderately velvety; very slightly glossy.             Texture and luster, upper surface: Moderately to densely             pubescent, prominent venation; moderately velvety; matte.             Venation pattern: Pinnate, reticulate. Color: Developing             leaves, upper surface: Close to 137A. Developing leaves,             lower surface: Close to 146B. Fully developed leaves, upper             surface: Close to NN137A; venation, close to 147C. Fully             developed leaves, lower surface: Close to 147B; venation,             close to 146B. Petioles: Length: About 1.9 cm. Diameter:             About 2.75 mm by 3 mm. Strength: Moderately strong. Texture             and luster, upper and lower surfaces: Moderately to densely             pubescent; moderately glossy. Color, lower surface: Close to             146D; edges, close to 147B. Stipules: Quantity and             appearance: Two leafy stipules, opposite, at the petiole             attachment to the stem. Length: About 9 mm. Width: About             1.5 cm. Shape: Flabellate. Apex: Incised. Base: Cuneate.             Texture and luster, upper surface: Moderately to densely             pubescent, not rugose; moderately velvety; very slightly             glossy. Texture and luster, upper surface: Moderately to             densely pubescent, prominent venation; moderately velvety;             matte. Color: Upper surface: Close to NN137A; venation,             close to 147C. Lower surface: Close to 147B; venation, close             to 146B. -   Inflorescence description:     -   -   Appearance.—Anemone inflorescence form with             oblanceolate-shaped ray florets; inflorescences borne             perpendicular to peduncles and face mostly upright to             outwardly; ray and disc florets develop acropetally on a             capitulum.         -   Fragrance.—Faintly fragrant; sweet.         -   Flowering response.—Under natural conditions, plant flower             in the autumn/winter in the Northern Hemisphere; at other             times of the year, inflorescence initiation and development             can be induced under short day/long night conditions (at             least 13.5 hours of darkness); plants exposed to two weeks             of long day/short night conditions after planting followed             by photoinductive short day/long night conditions flower             about 70 days later when grown as a spray-type; uniform             flowering habit.         -   Postproduction longevity.—Good postproduction longevity; in             an interior environment, inflorescences and foliage will             maintain good color and substance for about two weeks;             inflorescences persistent.         -   Quantity of inflorescences.—Freely flowering habit; when             grown as a spray-type, about 21 inflorescences develop per             flowering stem.         -   Inflorescence size.—Diameter: About 6.8 cm. Depth (height):             About 2.5 cm. Disc diameter: About 1.6 cm.         -   Receptacles.—Height: About 6 mm. Diameter: About 6 mm.             Shape: Broadly ovoid. Color: Close to 193A.         -   Inflorescence buds.—Height: About 9 mm. Diameter: About             1.4 cm. Shape: Flattened globular. Texture and luster:             Smooth and glabrous; slightly glossy. Color: Close to 143A             and 145C; immature ray florets, close to 155C.         -   Ray florets.—Quantity and arrangement: About 44 arranged in             about two whorls. Length: About 2.4 cm to 3.5 cm. Width:             About 0.8 cm to 1.4 cm. Shape: Oblanceolate; moderately to             strongly concave; moderately carinate. Apex: Bluntly acute             to obtuse. Base: Attenuate. Margin: Entire; not undulate.             Aspect: Initially upright to eventually about 55° to 60°             from vertical. Texture and luster, upper surface: Smooth,             glabrous; moderately velvety; not rugose; matte. Texture and             luster, lower surface: Smooth, glabrous; slightly velvety;             not rugose; slightly glossy. Color: When opening, upper             surface: Close to NN155D; at the base, close to 144B. When             opening, lower surface: Close to NN155C; at the base, close             to 144B. Fully opened, upper and lower surfaces: Close to             NN155D; at the base, close to 144B; venation, similar to             lamina colors; color does not change with development.         -   Disc florets.—Quantity and arrangement: About 160 spirally             arranged in about eight whorls at the center of the             receptacle. Length: About 1.1 cm. Diameter: About 2.25 mm.             Shape: Lower 63.5% fused into a tube; upper 36.5% free.             Apex: Bluntly acute. Margin: Entire. Texture and luster,             inner and outer surfaces: Smooth, glabrous; not rugose;             slightly glossy. Color, when opening, inner and outer             surfaces: Apex: Close to 150B. Mid-section: Close to 150D.             Base: Close to 154D. Color, fully opened, inner and outer             surfaces: Apex: Close to 150D. Mid-section: Close to 155C.             Base: Close to 145C.         -   Involucral bracts.—Quantity and arrangement: About 24             arranged in two whorls. Length: About 1.4 cm. Width: About             5 mm. Shape: Oblong to narrowly ovate. Apex: Obtuse. Base:             Cuneate. Margin: Entire. Texture and luster, upper surface:             Smooth, glabrous; glossy. Texture and luster, lower surface:             Smooth, glabrous; slightly glossy. Color, upper surface:             Close to 146B; margins, translucent, and close to 157D;             apices, close to N199A. Color, lower surface: Close to 137A;             margins, translucent, close to 157D; apices, close to N199A.         -   Peduncles.—Length, terminal peduncle: About 5.7 cm.             Diameter, terminal peduncle: About 3 mm. Length, third             peduncle: About 7.9 cm. Diameter, terminal peduncle: About             3 mm. Strength: Strong. Aspect, terminal peduncle: Mostly             upright. Aspect, third peduncle: About 40° from the             flowering stem axis. Texture and luster: Densely pubescent;             matte. Color: Close to 137B.         -   Reproductive organs.—Androecium: Present on disc florets             only. Quantity: About five per floret. Filament length:             About 2 mm. Filament color: Close to 157D. Anther size:             About 0.5 mm by 1.25 mm. Anther shape: Narrowly oblong.             Anther color: Close to 164A. Pollen amount: Scarce. Pollen             color: Close to 14B. Gynoecium: Present on both ray and disc             florets. Quantity: One per floret. Pistil length: About             5 mm. Style length: About 4 mm. Style color: Close to 145B.             Stigma diameter: About 1 mm. Stigma shape: Cleft, decurrent.             Stigma color: Close to 153D. Ovary color: Close to 145D.         -   Seeds and fruits.—To date, seed and fruit production have             not been observed on plants of the new Chrysanthemum. -   Pathogen & pest resistance: Plants of the new Chrysanthemum have     been observed to be resistant to Fusarium Wilt (Fusarium oxysporum f     sp. chrysanthemi). To date, resistance to pests and other pathogens     common to Chrysanthemum plants has not been observed on plants of     the new Chrysanthemum grown under commercial conditions. -   Temperature tolerance: Plants of the new Chrysanthemum have been     observed to tolerate temperatures ranging from about −12° C. to     35° C. and to be suitable for USDA Hardiness Zones 8 to 10. 

It is claimed:
 1. A new and distinct Chrysanthemum plant named ‘DLFBLAN1’ as illustrated and described. 